Finding the Fourth Proportional to 150,589.69, 207,818.27 and 83,520.25

Step by Step Solution

1. Step 1: Write the proportion equation
   150,589.69 : 207,818.27 = 83,520.25 : x
2. Step 2: Convert to fraction form
   150,589.69/207,818.27 = 83,520.25/x
3. Step 3: Cross multiply
   150,589.69x = 207,818.27 × 83,520.25
4. Step 4: Simplify right side
   150,589.69x = 17,357,033,447.37
5. Step 5: Solve for x
   x = 17,357,033,447.37/150,589.69
6. Step 6: Final answer
   x = 115,260.44